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Nonamiya [84]
3 years ago
10

If 5a=-4b+5 and 3a=-2b+3, what is 6b?

Mathematics
1 answer:
never [62]3 years ago
8 0
<span>Simplifying 3a + -2b = 5a + 6b Solving 3a + -2b = 5a + 6b Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-5a' to each side of the equation. 3a + -5a + -2b = 5a + -5a + 6b Combine like terms: 3a + -5a = -2a -2a + -2b = 5a + -5a + 6b Combine like terms: 5a + -5a = 0 -2a + -2b = 0 + 6b -2a + -2b = 6b Add '2b' to each side of the equation. -2a + -2b + 2b = 6b + 2b Combine like terms: -2b + 2b = 0 -2a + 0 = 6b + 2b -2a = 6b + 2b Combine like terms: 6b + 2b = 8b -2a = 8b Divide each side by '-2'. a = -4b Simplifying a = -4b</span>
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Order these from least to greatest 3 39/40 , 3 19/20 , 3 1/2
Lera25 [3.4K]

Hey!

First change all the fractions so that they have a common denominator: 40

3 \frac{39}{40} = 3 \frac{39}{40}

3 \frac{19 \times 2}{20 \times 2} = 3 \frac{38}{40}

3 \frac{1 \times 20}{2 \times 20} = 3 \frac{20}{40}

Now order them:

3 \frac{39}{40} , 3 \frac{19}{20} , 3 \frac{1}{2}

Good luck and hope this helps! :)

3 0
3 years ago
Evaluate 6+x6+x6, plus, x when x=3?
vampirchik [111]

Answer:

42

Step-by-step explanation:

x=3

6+x6+x6

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(3)6=18

(3)6=18

6+18+18

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Hope this helps ;) ❤❤❤

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3 years ago
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Is this shape a polygon?
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Write an equation that represents the total cost for pop music bundles. Write another equations to represent the total cost for
Anestetic [448]

Answer:

Equation for the total cost for pop music bundles = $ 1200 x + 300

Where variable is the Cost.

Equation for the total cost for rock music bundles = $ 950 x + 250

Where variable is the Cost.

Step-by-step explanation:

P.S - The exact question is -

Given - The Music Express is going to buy music bundles from a

             company that is going out of business. The company

             charges different amounts for bundles of pop and rock

             music:

             Cost for each pop music bundle is $1200

             Cost for each rock music bundle is $950

             One - time fee for rights to the pop music is $300

             One - time fee for rights to the rock music is $250.

To find - Write an equation that represents the total cost for pop

               music bundles.

              Write another equations to represent the total cost for rock

              music bundles.

              Identify the variables in the equations.

Proof -

Given that,

Cost for each pop music bundle is $1200.

Cost for each rock music bundle is $950.

One - time fee for rights to the pop music is $300.

One - time fee for rights to the rock music is $250.

Let the total music bundles buy = x

Now,

Given, Cost for 1 pop music bundle = $1200

⇒Cost for x pop music bundles = $ 1200 x

Also given,

One - time fee for rights to the pop music is $300.

∴ we get

Equation for the total cost for pop music bundles = $ 1200 x + 300

Where variable is the Cost.

Now,

Given, Cost for 1 rock music bundle = $950

⇒Cost for x pop music bundles = $ 950 x

Also given,

One - time fee for rights to the pop music is $250.

∴ we get

Equation for the total cost for rock music bundles = $ 950 x + 250

Where variable is the Cost.

5 0
2 years ago
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